What is the fastest RAM I can use in a Dell Latitude D400?

Archived from groups: comp.sys.laptops (More info?)

Hi -

I want to get a 1GB stick of RAM for my Dell Latitude D400.

I know DDR PC2700, CL=2.5, NON-ECC RAM will work in it, since that is
what the stick which is currently in the machine is.

But, I would like to buy the fastest RAM available (even if my D400
cannot take advantage of the speed) since it will be useful to me in my
next laptop if I get the fastest available and usable.

Does anyone know if DDR2 PC2-4200, CL=4, NON-ECC RAM would work in this
machine?

Price not really an issue.

Thanks for your help,
David.